package Date1205;
import java.util.Scanner;
public class Demo3{//闰年判断
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int y = sc.nextInt();
        if(y%4==0 && y%100!=0){
            System.out.println("yes");
        }else if(y%400==0){
            System.out.println("yes");
        }else{
            System.out.println("no");
        }
    }

}